Time filter

Source Type

Fujioka M.,Keio University | Okamoto Y.,Inagi Municipal Hospital | Okamoto Y.,Sensory Medical | Shinden S.,Saiseikai Utsunomiya Hospital | And 6 more authors.
PLoS ONE | Year: 2014

Cochlear lateral wall has recently been reported as a common site of inflammation, yet precise molecular mechanisms of the inflammatory responses remain elucidated. The present study examined the inflammatory responses in the lateral wall following acute mitochondrial dysfunction induced by a mitochondrial toxin, 3-nitropropionic acid (3-NP). Reverse-transcription (RT)-PCR revealed increases in the expression of the proinflammatory cytokines interleukin (IL)-1β and IL-6. Immunohistochemistry showed an increase in the number of activated cochlear macrophages in the lateral wall, which were in close proximity to IL-6-expressing cells. A genome-wide DNA microarray analysis of the lateral wall revealed that 35% and 60% of the genes showing >2-fold upregulation at 1 d and 3 d post-3-NP administration, respectively, were inflammatory genes, including CC- and CXC-type chemokine genes. High expression of CCL-1, 2, and 3 at 1 d, and of CCL-1, 2, 3, 4, and 5, CCR-2 and 5, and CX3CR1 at 3 d post-3-NP administration, coupled with no change in the level of CX3CL1 expression suggested that macrophages and monocytes may be involved in the inflammatory response to 3-NP-mediated injury. Quantitative (q)RT-PCR showed a transient induction of IL-1β and IL-6 expression within 24 h of 3-NP-mediated injury, followed by sustained expression of the chemoattractants, CCL-2, 4 and 5, up until 7 d after injury. The expression of CCL-2 and IL-6 was higher in animals showing permanent hearing impairment than in those showing temporary hearing impairment, suggesting that these inflammatory responses may be detrimental to hearing recovery. The present findings suggest that acute mitochondrial dysfunction induces secondary inflammatory responses in the lateral wall of the cochlear and that the IL-6/CCL-2 inflammatory pathway is involved in monocyte activation. Therefore, these secondary inflammatory responses may be a potential post-insult therapeutic target for treatments aimed at preventing the damage caused by acute mitochondrial dysfunction in the cochlear lateral wall. © 2014 Fujioka et al.


Inoue N.,Inagi Municipal Hospital | Yamamoto A.,Inagi Municipal Hospital | Matsumoto S.,Ishigaki Clinic | Ishigaki N.,Ishigaki Clinic
Japanese Journal of Allergology | Year: 2011

As a result of ingesting wheat- and soybean-based food products in school meals, an 8-year-old boy repeatedly experienced dyspnea and urticaria while exercising. Based on the symptoms, he was assumed to have been experiencing a food-dependent exercise-induced anaphylactic reaction. Based on the Japanese pediatric guideline for oral food challenge in food allergy 2009, examination using various combinations of food products (wheat and soybeans), medicine (aspirin), and exercise was performed. However, the examination failed to elicit any symptoms. Although we eliminated the food products from the examination, dyspnea caused by exercising after ingesting only wheat products was observed again. Thereafter, we performed a provocation test using wheat products, but symptoms were observed only on increasing the amount of ingested food and the momentum of exercise, without administering aspirin. The possibility that wheat is a more potent inducing factor than aspirin in increasing the momentum of exercise and amount of ingestion in food-dependent exercise-induced anaphylaxis was suggested. ©2011 Japanese Society of Allergology.


Shiraki H.,Inagi Municipal Hospital | Yokozuka H.,Red Cross | Negishi K.,Yokohama Municipal Citizens Hospital | Inoue S.,Hino Municipal Hospital | And 4 more authors.
Circulation Journal | Year: 2010

Background: Right ventricular myocardial infarction (RVMI) is the major cause of hypotension and/or shock (HpS) after acute inferior myocardial infarction (inferior AMI). It is, however, unclear how RVMI affects the acute hemodynamic course. Methods and Results: In the present study, 153 patients with inferior AMI caused by right coronary artery occlusion were examined. Associations between in-hospital outcome and HpS before admission (preER-HpS) or HpS after admission (postER-HpS) were assessed using multivariate logistic regression analysis. Multivariate analysis was also conducted to determine a predictor for postER-HpS, including clinical findings in the emergency room as independent variables. HpS developed in 48.4% of patients with inferior AMI. Patients with RVMI more frequently had HpS than their counterparts in the first 6 h after infarction onset. RVMI was, however, not associated with preER-HpS, but was independently with postER-HpS (odds ratio (OR): 10.1; 4.0-27.7), whereas left ventricular failure was associated with preER-HpS, but not with postER-HpS. Furthermore, RVMI (OR: 9.4; 3.6-27.1) identified at presentation predicted postER-HpS. Conclusions: Independent of concomitant left ventricular involvement, RVMI was significantly associated with postER-HpS, but not with preER-HpS. These findings highlight the importance of identifying RVMI immediately after admission in the setting of inferior AMI.


Shirotake S.,Inagi Municipal Hospital | Yoshimura I.,Inagi Municipal Hospital | Kosaka T.,Keio University | Matsuzaki S.,Inagi Municipal Hospital
Clinical and Experimental Nephrology | Year: 2011

The case of a 63-year-old woman with a relatively rapidly growing angiomyolipoma (AML) originating from the right renal sinus is presented. The tumor had enlarged to more than fivefold in volume (7.4 × 6.7 × 10.1 cm) in the 7 years following its detection (5.6 × 3.4 × 4.6 cm) and had significantly pushed aside the duodenum and the inferior vena cava. The tumor was surgically resected together with the right kidney, and pathological examination revealed AML originating from the renal sinus. An AML involving or originating from the renal sinus is exceedingly rare; only 14 cases have been reported. Rapidly growing AMLs of the renal sinus are difficult to differentiate from liposarcoma because of similar findings in imaging studies. It should be noted that AML of the renal sinus can be a differential diagnosis of retroperitoneal fatty mass. Furthermore, an enlarged AML in the renal sinus may push aside other organs, such as the ileum, pancreas, and major vessels. Clinicians should determine whether these patients should be placed under active surveillance or be treated with invasive measures, such as radical nephrectomy. © 2011 Japanese Society of Nephrology.


Kawarazaki H.,Inagi Municipal Hospital | Kawarazaki H.,St. Marianna University School of Medicine | Uchino S.,Jikei University School of Medicine
Anaesthesiology Intensive Therapy | Year: 2016

The 1980s saw the use of continuous arteriovenous hemofiltration whose intensity hemofiltration rate was only 3 or 4 mL kg-1 h-1 . With the installation of a blood pump, this dose went up to 8 or 10 mL kg-1 h-1 , and continued to increase, reaching about 20 mL kg-1 h-1 by the year 2000. Some studies found that a higher dose could be beneficial, and the world rapidly followed the trend, increasing the dose up to 35 mL kg-1 h-1 . Then, two randomized control trials, namely the VA/NIH Acute Renal Failure Trial Network study and the RENAL study, came along in succession which changed the Kidney Disease: Improving Global Outcomes (KDIGO) recommendation to 20 to 25 mL kg-1 h-1 . However, no good evidence exists to support this. Our recent multicenter retrospective studies from the JSEPTIC CRRT database show that the Japanese continuous renal replacement therapy dose of (14.3 mL kg-1 h-1 ) does not seem to have worse outcomes when compared with a higher dose.


PubMed | Inagi Municipal Hospital, Teikyo University and Keio University
Type: Journal Article | Journal: Japanese journal of clinical oncology | Year: 2016

Biological markers for breast cancer are biomolecules that result from cancer-related processes and are associated with particular clinical outcomes; they thus help predict responses to therapy. In recent years, gene expression profiling has made the molecular classification of breast cancer possible. Classification of breast cancer by immunohistochemical expression of estrogen receptor, progesterone receptor, human epidermal growth factor receptor 2 and Ki-67 is standard practice for clinical decision-making. Assessments of hormone receptor expression and human epidermal growth factor receptor 2 overexpression help estimate benefits from targeted therapies and have greatly improved prognoses for women with these breast cancer types. Although Ki-67 positivity is associated with an adverse outcome, its clear identification is an aid to optimal disease management. Standardization of testing methodology to minimize inter-laboratory measurement variations is a remaining issue. Multi-gene assays provide prognostic information and identify those most likely to benefit from systemic chemotherapy. Incorporating molecular profiles with conventional pathological classification would be more precise, and could enhance the clinical development of personalized therapy in breast cancer.


PubMed | Inagi Municipal Hospital, Teikyo University and Keio University
Type: | Journal: International journal of surgery (London, England) | Year: 2015

The role of sentinel lymph node biopsy (SLNB) in patients with ipsilateral breast tumor recurrence (IBTR) remains to be elucidated. The aim of this study was to evaluate feasibility and validity of SLNB in patients with IBTR.A prospective database of 1172 patients with clinically node-negative breast cancer who underwent SLNB from January 2005 to December 2013 at Keio University Hospital was analyzed and 35 patients with IBTR underwent SLNB. Sentinel lymph nodes (SLNs) were detected using a combined method of blue dye and radioisotope or indocyanine green fluorescence in cases with failure of identification by blue dye and radioisotope.Twenty-two patients had previous SLNB, eight had previous axillary lymph node dissection (ALND), and five had no previous axillary surgery. Overall, SLNs were successfully identified in 28 (80.0%) of 35 patients. The identification rate in patients with previous SLNB, ALND and no axillary surgery was 81.8% (18/22), 75% (6/8) and 80% (4/5), respectively (P = 0.52). Aberrant drainage outside the ipsilateral axilla was found more frequently in patients with previous ALND compared with SLNB and no axillary treatment (37.5% vs. 4.5% vs. 0%, P = 0.048). No axillary recurrence was observed after median follow-up of 40.3 months from the second surgery for IBTR.SLNB is a technically feasible and valid procedure for staging and treatment of regional lymph nodes in patients with IBTR.


PubMed | Itabashi Chuo Medical Center, Inagi Municipal Hospital and National Cancer Center
Type: Journal Article | Journal: Medical physics | Year: 2017

CyberKnife irradiation is composed of tiny-size, multiple and intensity-modulated beams compared to conventional linacs. Few of the publications for Independent dose calculation verification for CyberKnife have been reported. In this study, we evaluated the feasibility of independent dose verification for CyberKnife treatment as Secondary check.The followings were measured: test plans using some static and single beams, clinical plans in a phantom and using patients CT. 75 patient plans were collected from several treatment sites of brain, lung, liver and bone. In the test plans and the phantom plans, a pinpoint ion-chamber measurement was performed to assess dose deviation for a treatment planning system (TPS) and an independent verification program of Simple MU Analysis (SMU). In the clinical plans, dose deviation between the SMU and the TPS was performed.In test plan, the dose deviations were 3.34.5%, and 4.14.4% for the TPS and the SMU, respectively. In the phantom measurements for the clinical plans, the dose deviations were -0.23.6% for the TPS and -2.34.8% for the SMU. In the clinical plans using the patients CT, the dose deviations were -3.02.1% (Mean1SD). The systematic difference was partially derived from inverse square law and penumbra calculation.The independent dose calculation for CyberKnife shows -3.04.2% (Mean2SD) and our study, the confidence limit was achieved within 5% of the tolerance level from AAPM task group 114 for non-IMRT treatment. Thus, it may be feasible to use independent dose calculation verification for CyberKnife treatment as the secondary check. This research is partially supported by Japan Agency for Medical Research and Development (AMED).


PubMed | Kobe City Medical Center General Hospital, Sasebo City General Hospital, National Cancer Center, Inagi Municipal Hospital and 5 more.
Type: Journal Article | Journal: Medical physics | Year: 2017

In general, beam data of individual linac is measured for independent dose verification software program and the verification is performed as a secondary check. In this study, independent dose verification using golden beam data was compared to that using individual linacs beam data.Six institutions were participated and three different beam data were prepared. The one was individual measured data (Original Beam Data, OBD) .The others were generated by all measurements from same linac model (Model-GBD) and all linac models (All-GBD). The three different beam data were registered to the independent verification software program for each institute. Subsequently, patients plans in eight sites (brain, head and neck, lung, esophagus, breast, abdomen, pelvis and bone) were analyzed using the verification program to compare doses calculated using the three different beam data.1116 plans were collected from six institutes. Compared to using the OBD, the results shows the variation using the Model-GBD based calculation and the All-GBD was 0.0 0.3% and 0.0 0.6%, respectively. The maximum variations were 1.2% and 2.3%, respectively. The plans with the variation over 1% shows the reference points were located away from the central axis with/without physical wedge.The confidence limit (2SD) using the Model-GBD and the All-GBD was within 0.6% and 1.2%, respectively. Thus, the use of golden beam data may be feasible for independent verification. In addition to it, the verification using golden beam data provide quality assurance of planning from the view of audit. This research is partially supported by Japan Agency for Medical Research and Development(AMED).


PubMed | Inagi Municipal Hospital
Type: Journal Article | Journal: Anaesthesiology intensive therapy | Year: 2016

The 1980s saw the use of continuous arteriovenous hemofiltration whose intensity hemofiltration rate was only 3 or 4 mL kg h. With the installation of a blood pump, this dose went up to 8 or 10 mL kg h1, and continued to increase, reaching about 20 mL kg h by the year 2000. Some studies found that a higher dose could be beneficial, and the world rapidly followed the trend, increasing the dose up to 35 mL kg h. Then, two randomized control trials, namely the VA/NIH Acute Renal Failure Trial Network study and the RENAL study, came along in succession which changed the Kidney Disease: Improving Global Outcomes (KDIGO) recommendation to 20 to 25 mL kg h. However, no good evidence exists to support this. Our recent multicenter retrospective studies from the JSEPTIC CRRT database show that the Japanese continuous renal replacement therapy dose of (14.3 mL kg h) does not seem to have worse outcomes when compared with a higher dose.

Loading Inagi Municipal Hospital collaborators
Loading Inagi Municipal Hospital collaborators